opt.

lib/data/model/app/backup.dart

@@ -70,7 +70,7 @@ class Backup {
 
   static Future<void> backup() async {
     final result = _diyEncrtpt(json.encode(Backup.loadFromStore()));
-    await File(await backupPath).writeAsString(result);
+    await File(await Paths.bak).writeAsString(result);
   }
 
   Future<void> restore() async {

lib/data/model/app/dynamic_color.dart

@@ -1,6 +1,5 @@
 import 'package:flutter/widgets.dart';
-
-import '../../../core/extension/context.dart';
+import 'package:toolbox/core/extension/context/common.dart';
 
 class DynamicColor {
   /// 白天模式显示的颜色

lib/data/model/app/shell_func.dart

@@ -1,7 +1,8 @@
 import '../../res/build_data.dart';
-import '../../res/server_cmd.dart';
 import '../server/system.dart';
 
+const seperator = 'SrvBoxSep';
+
 const _cmdDivider = '\necho $seperator\n\t';
 
 const _serverBoxDir = r'$HOME/.config/server_box';

lib/data/model/server/conn.dart

@@ -20,7 +20,7 @@ Conn? parseConn(String raw) {
   final idx = lines.lastWhere((element) => element.startsWith('Tcp:'),
       orElse: () => '');
   if (idx != '') {
-    final vals = idx.split(numReg);
+    final vals = idx.split(Miscs.numReg);
     return Conn(
       maxConn: vals[5].i,
       active: vals[6].i,

lib/data/model/server/disk.dart

@@ -27,7 +27,7 @@ List<Disk> parseDisk(String raw) {
     if (item.isEmpty) {
       continue;
     }
-    final vals = item.split(numReg);
+    final vals = item.split(Miscs.numReg);
     if (vals.length == 1) {
       pathCache = vals[0];
       continue;

lib/data/model/server/proc.dart

@@ -93,7 +93,7 @@ class Proc {
 
   @override
   String toString() {
-    return jsonEncoder.convert(toJson());
+    return Miscs.jsonEncoder.convert(toJson());
   }
 
   String get binary {

lib/data/provider/debug.dart

@@ -52,9 +52,9 @@ class DebugProvider extends ChangeNotifier {
 
   void _addWidget(Widget widget) {
     widgets.add(widget);
-    widgets.add(height13);
-    if (widgets.length > maxDebugLogLines) {
-      widgets.removeRange(0, widgets.length - maxDebugLogLines);
+    widgets.add(UIs.height13);
+    if (widgets.length > Miscs.maxDebugLogLines) {
+      widgets.removeRange(0, widgets.length - Miscs.maxDebugLogLines);
     }
     notifyListeners();
   }

lib/data/provider/docker.dart

@@ -12,8 +12,6 @@ import 'package:toolbox/data/res/logger.dart';
 import 'package:toolbox/data/store/docker.dart';
 import 'package:toolbox/locator.dart';
 
-import '../res/server_cmd.dart';
-
 final _dockerNotFound = RegExp(r'command not found|Unknown command');
 final _versionReg = RegExp(r'(Version:)\s+([0-9]+\.[0-9]+\.[0-9]+)');
 // eg: `Docker Engine - Community`

lib/data/provider/server.dart

@@ -14,7 +14,6 @@ import '../model/server/server_private_info.dart';
 import '../model/server/server_status_update_req.dart';
 import '../model/server/snippet.dart';
 import '../model/server/try_limiter.dart';
-import '../res/server_cmd.dart';
 import '../res/status.dart';
 import '../store/server.dart';
 import '../store/setting.dart';

lib/data/res/color.dart

@@ -4,6 +4,8 @@ import '../model/app/dynamic_color.dart';
 
 late Color primaryColor;
 
-const contentColor = DynamicColor(Colors.black87, Colors.white70);
-const bgColor = DynamicColor(Colors.white, Colors.black);
-const progressColor = DynamicColor(Colors.black12, Colors.white10);
+class DynamicColors {
+  static const content = DynamicColor(Colors.black87, Colors.white70);
+  static const bg = DynamicColor(Colors.white, Colors.black);
+  static const progress = DynamicColor(Colors.black12, Colors.white10);
+}

lib/data/res/default.dart

@@ -2,48 +2,50 @@ import 'dart:ui';
 
 import 'package:toolbox/data/model/ssh/virtual_key.dart';
 
-// default server details page cards order
-const defaultDetailCardOrder = [
-  'uptime',
-  'cpu',
-  'mem',
-  'swap',
-  'disk',
-  'net',
-  'temp'
-];
+class Defaults {
+  // default server details page cards order
+  static const detailCardOrder = [
+    'uptime',
+    'cpu',
+    'mem',
+    'swap',
+    'disk',
+    'net',
+    'temp'
+  ];
 
-const defaultDiskIgnorePath = [
-  'udev',
-  'tmpfs',
-  'devtmpfs',
-  'overlay',
-  'run',
-  'none',
-];
+  static const diskIgnorePath = [
+    'udev',
+    'tmpfs',
+    'devtmpfs',
+    'overlay',
+    'run',
+    'none',
+  ];
 
-const defaultSSHVirtKeys = [
-  VirtKey.esc,
-  VirtKey.alt,
-  VirtKey.home,
-  VirtKey.up,
-  VirtKey.end,
-  VirtKey.sftp,
-  VirtKey.snippet,
-  VirtKey.tab,
-  VirtKey.ctrl,
-  VirtKey.left,
-  VirtKey.down,
-  VirtKey.right,
-  VirtKey.clipboard,
-  VirtKey.ime,
-];
+  static const sshVirtKeys = [
+    VirtKey.esc,
+    VirtKey.alt,
+    VirtKey.home,
+    VirtKey.up,
+    VirtKey.end,
+    VirtKey.sftp,
+    VirtKey.snippet,
+    VirtKey.tab,
+    VirtKey.ctrl,
+    VirtKey.left,
+    VirtKey.down,
+    VirtKey.right,
+    VirtKey.clipboard,
+    VirtKey.ime,
+  ];
 
-const defaultPrimaryColor = Color.fromARGB(255, 145, 58, 31);
+  static const primaryColor = Color.fromARGB(255, 145, 58, 31);
 
-const defaultLaunchPageIdx = 0;
+  static const launchPageIdx = 0;
 
-const defaultUpdateInterval = 3;
+  static const updateInterval = 3;
 
-const defaultEditorTheme = 'a11y-light';
-const defaultEditorDarkTheme = 'monokai';
+  static const editorTheme = 'a11y-light';
+  static const editorDarkTheme = 'monokai';
+}

lib/data/res/github_id.dart

@@ -0,0 +1,38 @@
+import 'package:toolbox/data/model/app/github_id.dart';
+
+class GithubIds {
+  // Thanks
+// If you want to change the url, please open an issue.
+  static const contributors = <GhId>{
+    'its-tom',
+    'RainSunMe',
+    'kalashnikov',
+    'azkadev',
+    'calvinweb',
+    'Liloupar'
+  };
+  static const participants = <GhId>{
+    'jaychoubaby',
+    'fecture',
+    'Tao173',
+    'QingAnLe',
+    'wxdjs',
+    'Aeorq',
+    'allonmymind',
+    'Yuuki-Rin',
+    'LittleState',
+    'karuboniru',
+    'whosphp',
+    'Climit',
+    'dianso',
+    'Jasondeepny',
+    'kaliwell',
+    'ymxkiss',
+    'Ealrang',
+    'hange33',
+    'yuchen1204',
+    'xgzxmytx',
+    'wind057',
+    'a1564471347',
+  };
+}

lib/data/res/highlight.dart

@@ -1,4 +1,3 @@
-import 'package:highlight/highlight_core.dart';
 import 'package:highlight/languages/accesslog.dart';
 import 'package:highlight/languages/awk.dart';
 import 'package:highlight/languages/bash.dart';
@@ -33,52 +32,48 @@ import 'package:highlight/languages/vim.dart';
 import 'package:highlight/languages/xml.dart';
 import 'package:highlight/languages/yaml.dart';
 
-// KEY: fileNameSuffix
-// VAL: highlight
-final suffix2HighlightMap = {
-  'dart': dart,
-  'go': go,
-  'rust': rust,
-  'lua': lua,
-  'sh': bash,
-  'py': python,
-  'js': javascript,
-  'ts': typescript,
-  'java': java,
-  'kt': kotlin,
-  'swift': swift,
-  'c': cpp,
-  'oc': objectivec,
-  'ruby': ruby,
-  'perl': perl,
-  'php': php,
-  'nix': nix,
-  'lisp': lisp,
-  'sql': sql,
-  'powershell': powershell,
-  'log': accesslog,
-  'ini': ini,
-  'cmake': cmake,
-  'awk': awk,
-  'json': json,
-  'yaml': yaml,
-  'xml': xml,
-  'cpp': cpp,
-  'diff': diff,
-  'css': css,
-  'html': htmlbars,
-  'tex': tex,
-  'vim': vim,
-  'plaintext': plaintext,
-};
+class Highlights {
+  /// - KEY: fileNameSuffix
+  /// - VAL: highlight
+  static final all = {
+    'dart': dart,
+    'go': go,
+    'rust': rust,
+    'lua': lua,
+    'sh': bash,
+    'py': python,
+    'js': javascript,
+    'ts': typescript,
+    'java': java,
+    'kt': kotlin,
+    'swift': swift,
+    'c': cpp,
+    'oc': objectivec,
+    'ruby': ruby,
+    'perl': perl,
+    'php': php,
+    'nix': nix,
+    'lisp': lisp,
+    'sql': sql,
+    'powershell': powershell,
+    'log': accesslog,
+    'ini': ini,
+    'cmake': cmake,
+    'awk': awk,
+    'json': json,
+    'yaml': yaml,
+    'xml': xml,
+    'cpp': cpp,
+    'diff': diff,
+    'css': css,
+    'html': htmlbars,
+    'tex': tex,
+    'vim': vim,
+    'plaintext': plaintext,
+  };
 
-extension HighlightString on String? {
-  Mode? get highlight {
-    return suffix2HighlightMap[highlightCode];
-  }
-
-  String? get highlightCode {
-    if (this == null) return null;
-    return this!.split('.').last;
+  static String? getCode(String? fileName) {
+    if (fileName == null) return null;
+    return fileName.split('.').last;
   }
 }

lib/data/res/misc.dart

@@ -2,61 +2,26 @@ import 'dart:convert';
 
 import 'package:flutter/services.dart';
 
-import '../model/app/github_id.dart';
+class Miscs {
+  /// RegExp for number
+  static final numReg = RegExp(r'\s{1,}');
 
-/// RegExp for number
-final numReg = RegExp(r'\s{1,}');
+  /// RegExp for password request
+  static final pwdRequestWithUserReg = RegExp(r'\[sudo\] password for (.+):');
 
-/// RegExp for password request
-final pwdRequestWithUserReg = RegExp(r'\[sudo\] password for (.+):');
-
-/// Private Key max allowed size is 20kb
-const privateKeyMaxSize = 20 * 1024;
+  /// Private Key max allowed size is 20kb
+  static const privateKeyMaxSize = 20 * 1024;
 
 // Editor max allowed size is 1mb
-const editorMaxSize = 1024 * 1024;
+  static const editorMaxSize = 1024 * 1024;
 
-/// Max debug log lines
-const maxDebugLogLines = 100;
+  /// Max debug log lines
+  static const maxDebugLogLines = 100;
 
-/// Method Channels
-const pkgName = 'tech.lolli.toolbox';
-const bgRunChannel = MethodChannel('$pkgName/app_retain');
-const homeWidgetChannel = MethodChannel('$pkgName/home_widget');
+  /// Method Channels
+  static const pkgName = 'tech.lolli.toolbox';
+  static const bgRunChannel = MethodChannel('$pkgName/app_retain');
+  static const homeWidgetChannel = MethodChannel('$pkgName/home_widget');
 
-// Thanks
-// If you want to change the url, please open an issue.
-const contributors = <GhId>{
-  'its-tom',
-  'RainSunMe',
-  'kalashnikov',
-  'azkadev',
-  'calvinweb',
-  'Liloupar'
-};
-const participants = <GhId>{
-  'jaychoubaby',
-  'fecture',
-  'Tao173',
-  'QingAnLe',
-  'wxdjs',
-  'Aeorq',
-  'allonmymind',
-  'Yuuki-Rin',
-  'LittleState',
-  'karuboniru',
-  'whosphp',
-  'Climit',
-  'dianso',
-  'Jasondeepny',
-  'kaliwell',
-  'ymxkiss',
-  'Ealrang',
-  'hange33',
-  'yuchen1204',
-  'xgzxmytx',
-  'wind057',
-  'a1564471347',
-};
-
-const jsonEncoder = JsonEncoder.withIndent('  ');
+  static const jsonEncoder = JsonEncoder.withIndent('  ');
+}

lib/data/res/path.dart

@@ -3,45 +3,49 @@ import 'dart:io';
 import 'package:path_provider/path_provider.dart';
 import 'package:toolbox/core/utils/platform.dart';
 
-String? _docDir;
-String? _sftpDir;
-String? _fontDir;
+class Paths {
+  static String? _docDir;
+  static String? _sftpDir;
+  static String? _fontDir;
 
-Future<String> get docDir async {
-  if (_docDir != null) {
-    return _docDir!;
-  }
-  if (isAndroid) {
-    final dir = await getExternalStorageDirectory();
-    if (dir != null) {
-      _docDir = dir.path;
-      return dir.path;
+  static Future<String> get doc async {
+    if (_docDir != null) {
+      return _docDir!;
     }
-    // fallthrough to getApplicationDocumentsDirectory
+    if (isAndroid) {
+      final dir = await getExternalStorageDirectory();
+      if (dir != null) {
+        _docDir = dir.path;
+        return dir.path;
+      }
+      // fallthrough to getApplicationDocumentsDirectory
+    }
+    final dir = await getApplicationDocumentsDirectory();
+    _docDir = dir.path;
+    return dir.path;
   }
-  final dir = await getApplicationDocumentsDirectory();
-  _docDir = dir.path;
-  return dir.path;
-}
 
-Future<String> get sftpDir async {
-  if (_sftpDir != null) {
+  static Future<String> get sftp async {
+    if (_sftpDir != null) {
+      return _sftpDir!;
+    }
+    _sftpDir = '${await doc}/sftp';
+    final dir = Directory(_sftpDir!);
+    await dir.create(recursive: true);
     return _sftpDir!;
   }
-  _sftpDir = '${await docDir}/sftp';
-  final dir = Directory(_sftpDir!);
-  await dir.create(recursive: true);
-  return _sftpDir!;
-}
 
-Future<String> get fontDir async {
-  if (_fontDir != null) {
+  static Future<String> get font async {
+    if (_fontDir != null) {
+      return _fontDir!;
+    }
+    _fontDir = '${await doc}/font';
+    final dir = Directory(_fontDir!);
+    await dir.create(recursive: true);
     return _fontDir!;
   }
-  _fontDir = '${await docDir}/font';
-  final dir = Directory(_fontDir!);
-  await dir.create(recursive: true);
-  return _fontDir!;
-}
 
-Future<String> get backupPath async => '${await docDir}/srvbox_bak.json';
+  static Future<String> get bak async => '${await doc}/srvbox_bak.json';
+
+  static Future<String> get dl async => joinPath(await doc, 'dl');
+}

lib/data/res/server_cmd.dart

@@ -1 +0,0 @@
-const seperator = 'SrvBoxSep';

lib/data/res/ui.dart

@@ -1,52 +1,55 @@
 import 'package:flutter/material.dart';
 
-/// Font style
+class UIs {
+  /// Font style
 
-const textSize9Grey = TextStyle(color: Colors.grey, fontSize: 9);
-const textSize11 = TextStyle(fontSize: 11);
-const textSize11Grey = TextStyle(color: Colors.grey, fontSize: 11);
-const textSize13 = TextStyle(fontSize: 13);
-const textSize13Bold = TextStyle(fontSize: 13, fontWeight: FontWeight.bold);
-const textSize13Grey = TextStyle(color: Colors.grey, fontSize: 13);
-const textSize15 = TextStyle(fontSize: 15);
-const textSize18 = TextStyle(fontSize: 18);
-const textSize27 = TextStyle(fontSize: 27);
+  static const textSize9Grey = TextStyle(color: Colors.grey, fontSize: 9);
+  static const textSize11 = TextStyle(fontSize: 11);
+  static const textSize11Grey = TextStyle(color: Colors.grey, fontSize: 11);
+  static const textSize13 = TextStyle(fontSize: 13);
+  static const textSize13Bold =
+      TextStyle(fontSize: 13, fontWeight: FontWeight.bold);
+  static const textSize13Grey = TextStyle(color: Colors.grey, fontSize: 13);
+  static const textSize15 = TextStyle(fontSize: 15);
+  static const textSize18 = TextStyle(fontSize: 18);
+  static const textSize27 = TextStyle(fontSize: 27);
+  static const textGrey = TextStyle(color: Colors.grey);
+  static const textRed = TextStyle(color: Colors.red);
 
-const grey = TextStyle(color: Colors.grey);
-const textRed = TextStyle(color: Colors.red);
+  /// Icon
 
-/// Icon
+  static final appIcon = Image.asset('assets/app_icon.png');
 
-final appIcon = Image.asset('assets/app_icon.png');
+  /// Padding
 
-/// Padding
+  static const roundRectCardPadding =
+      EdgeInsets.symmetric(horizontal: 17, vertical: 13);
 
-const roundRectCardPadding = EdgeInsets.symmetric(horizontal: 17, vertical: 13);
+  /// SizedBox
 
-/// SizedBox
+  static const placeholder = SizedBox();
+  static const height13 = SizedBox(height: 13);
+  static const height77 = SizedBox(height: 77);
+  static const width13 = SizedBox(width: 13);
+  static const width7 = SizedBox(width: 7);
 
-const placeholder = SizedBox();
-const height13 = SizedBox(height: 13);
-const height77 = SizedBox(height: 77);
-const width13 = SizedBox(width: 13);
-const width7 = SizedBox(width: 7);
+  /// Misc
 
-/// Misc
+  static const popMenuChild = Padding(
+    padding: EdgeInsets.only(left: 7),
+    child: Icon(
+      Icons.more_vert,
+      size: 21,
+    ),
+  );
 
-const popMenuChild = Padding(
-  padding: EdgeInsets.only(left: 7),
-  child: Icon(
-    Icons.more_vert,
-    size: 21,
-  ),
-);
+  static const centerLoading = Center(child: CircularProgressIndicator());
 
-const centerLoading = Center(child: CircularProgressIndicator());
-
-const centerSizedLoading = SizedBox(
-  width: 77,
-  height: 77,
-  child: Center(
-    child: CircularProgressIndicator(),
-  ),
-);
+  static const centerSizedLoading = SizedBox(
+    width: 77,
+    height: 77,
+    child: Center(
+      child: CircularProgressIndicator(),
+    ),
+  );
+}

lib/data/res/url.dart

@@ -1,4 +1,6 @@
-const baseResUrl = 'https://res.lolli.tech/serverbox';
-const myGithub = 'https://github.com/lollipopkit';
-const appHelpUrl = '$myGithub/flutter_server_box#-help';
-const appWikiUrl = '$myGithub/flutter_server_box/wiki';
+class Urls {
+  static const resBase = 'https://res.lolli.tech/serverbox';
+  static const myGithub = 'https://github.com/lollipopkit';
+  static const appHelp = '$myGithub/flutter_server_box#-help';
+  static const appWiki = '$myGithub/flutter_server_box/wiki';
+}

lib/data/service/app.dart

@@ -5,7 +5,7 @@ import '../res/url.dart';
 
 class AppService {
   Future<AppUpdate> getUpdate() async {
-    final resp = await Dio().get('$baseResUrl/update.json');
+    final resp = await Dio().get('${Urls.resBase}/update.json');
     return AppUpdate.fromJson(resp.data);
   }
 }

lib/data/store/setting.dart

@@ -52,12 +52,12 @@ class SettingStore extends PersistentStore {
   late final launchPage = StoreProperty(
     box,
     'launchPage',
-    defaultLaunchPageIdx,
+    Defaults.launchPageIdx,
   );
 
   /// Server detail disk ignore path
   late final diskIgnorePath =
-      StoreListProperty(box, 'diskIgnorePath', defaultDiskIgnorePath);
+      StoreListProperty(box, 'diskIgnorePath', Defaults.diskIgnorePath);
 
   /// Use double column servers page on Desktop
   late final doubleColumnServersPage = StoreProperty(
@@ -77,7 +77,7 @@ class SettingStore extends PersistentStore {
   late final serverStatusUpdateInterval = StoreProperty(
     box,
     'serverStatusUpdateInterval',
-    defaultUpdateInterval,
+    Defaults.updateInterval,
   );
 
   // Max retry count when connect to server
@@ -99,7 +99,7 @@ class SettingStore extends PersistentStore {
 
   // Server details page cards order
   late final detailCardOrder =
-      StoreListProperty(box, 'detailCardPrder', defaultDetailCardOrder);
+      StoreListProperty(box, 'detailCardPrder', Defaults.detailCardOrder);
 
   // SSH term font size
   late final termFontSize = StoreProperty(box, 'termFontSize', 13.0);
@@ -117,13 +117,13 @@ class SettingStore extends PersistentStore {
   late final editorTheme = StoreProperty(
     box,
     'editorTheme',
-    defaultEditorTheme,
+    Defaults.editorTheme,
   );
 
   late final editorDarkTheme = StoreProperty(
     box,
     'editorDarkTheme',
-    defaultEditorDarkTheme,
+    Defaults.editorDarkTheme,
   );
 
   late final fullScreen = StoreProperty(
@@ -153,7 +153,7 @@ class SettingStore extends PersistentStore {
   late final sshVirtKeys = StoreListProperty(
     box,
     'sshVirtKeys',
-    defaultSSHVirtKeys,
+    Defaults.sshVirtKeys,
   );
 
   late final netViewType = StoreProperty(